Ada policy

[Robert Dewar]

Kai Henningsen wrote:

> Hmm. I certainly seem to remember reading those messages, too. Not that it  
> were a plan to always break compatibility, but that incompatible features  
> were pretty much always introduced and they wanted to use them in the  
> compiler, which then produced that incompatibility; and as long as the  
> previous version was still compatible, that was not considered a problem.
> 
> And that in fact only-the-previous-version had been true for a large  
> number of versions.

That's just not true. GNAT has been able to be built from 3.13 for
many years (3.13 was released several years ago). We only introduce
incompatibilities if we really need to for some significant cleanup
or kludge removal. Earlier on that was more common, but we have not
needed to do that for many years now.